CISCE Syllabus For Class 8 Biology: Knowing the Syllabus is very important for the students of Class 8. Shaalaa has also provided a list of topics that every student needs to understand.
The CISCE Class 8 Biology syllabus for the academic year 2022-2023 is based on the Board's guidelines. Students should read the Class 8 Biology Syllabus to learn about the subject's subjects and subtopics.
Students will discover the unit names, chapters under each unit, and subtopics under each chapter in the CISCE Class 8 Biology Syllabus pdf 2022-2023. They will also receive a complete practical syllabus for Class 8 Biology in addition to this.
Academic year:
CISCE Class 8 Biology Revised Syllabus
CISCE Class 8 Biology and their Unit wise marks distribution
CISCE Class 8 Biology Course Structure 2022-2023 With Marking Scheme
| # | Unit/Topic | Weightage |
|---|---|---|
| 1 | Transport of Food and Minerals in Plants | |
| 2 | Reproduction in Plants | |
| 3 | Reproduction in Humans | |
| 4 | Ecosystems | |
| 5 | Human Body: Endocrine System | |
| 6 | Human Body: Circulatory System | |
| 7 | Human Body: Nervous System | |
| 8 | Health and Hygiene | |
| 9 | Food Production | |
| Total | - |
Syllabus
1 Transport of Food and Minerals in Plants
- Transportation of Water and Food in Plants
- Permanent Tissue
- Water and Mineral Absorption by Root
- Root
- Root Hair
- Root Hair-Water Absorbing Unit
- Speciality of root hairs
- Structure of a Cell
- Absorption and Conduction of Water and Minerals in Plants
- Concept of Osmosis
- Endosmosis
- Exosmosis
- Active Transport
- Active absorption
- Types of Active absorption:
- Osmotic absorption
- Non-osmotic absorption
- Concept of Osmosis
- Translocation of Water (Ascent of Sap)
- Root Pressure Theory (Vital Theory)
- Capillarity theory (physical force theory)
- Cohesion- tension theory (Transpiration pull theory)
- Adhesion
- Root Pressure
- Guttation
- Transpiration
- Transpiration
- Demonstration of Transpiration
- Exchange of Gases
- Factors Affecting the Rate of Transpiration
- Significance of Transpiration
- Need of Water and Minerals for Plant
2 Reproduction in Plants
- Reproduction in Plant
- Mode of Reproduction in Plant
- Mode of Reproduction in Plant:
- Sexual reproduction
- Why the Sexual Mode of Reproduction? - Asexual reproduction
- Asexual Reproduction in Plant
- Asexual Reproduction in Plant
- Binary fission
- Budding
- Fragmentation
- Spore formation
- Vegetative reproduction
- Method of Natural Vegetative Propagation
- Method of natural vegetative propagation:
- Reproduction by Stem
- Reproduction by Leaf
- Reproduction by Root
- Advantages of natural vegetative propagation
- Disadvantage of natural vegetative propagation
- Method of Artificial Vegetative Propagation
- Method of Artificial Vegetative Propagation:
- Cutting
- Layering
- Grafting
- Micro-propagation
- Benefits of plant tissue culture technique
- Limitations of tissue culture
- Sexual Reproduction in Flowering Plants
- Description of flowering part:
- Stalk - Calyx, Corolla, Androecium (The male part), Gynoecium (The female part)
- Ovules
- Steps of sexual reproduction in the flowering plant:
- Pre-fertilization event
- Double fertilization event
- Pre-fertilization in Plant: Pollination
- Pollination
- Some examples of pollination
- Agents of Pollination
- Abiotic agents:
- Pollination by wind (Anemophily): Adaptations in anemophilous flowers
- Pollination by water (Hydrophily): Adaptations in hydrophilous flowers, Hypohydrophily, Epihydrophily.
- Biotic Agents:
- Pollination by insects (Entomophily): Adaptations in entomophilous flowers
- Pollination by birds (Ornithophily): Adaptations in ornithophilous flowers
- Pollination by Bats (Chiropteryphily): Adaptations in chiropterphilous flowers
- Fertilisation in Flowering Plants
- Artificial Pollination
3 Reproduction in Humans
- Reproduction in Animal and Human
- Mode of Reproduction in Animal
- Mode of Reproduction in Animal:
- Sexual reproduction
- Asexual reproduction
- Asexual Reproduction in Animal
- Asexual Reproduction in Animal
- Fission (Binary fission or multiple fission)
- Budding
- Regeneration
- Gemmule Formation
- Sexual Reproduction in Animals
- Why the Sexual Mode of Reproduction?
- Human Reproductive System
- Female Reproductive System
- Female Reproductive System
- Ovary: Structure and development of the ovary, Ovarian histology of a mature female, Structure of Graafian follicle
- Oviduct/Fallopian tube/Uterine tube: Infundibulum, Ampulla, Isthmus/Cornua
- Uterus: Fundus, Body, Cervix
- Vagina
- External genitalia
- Accessary glands/Vestibular glands/Bartholin’s glands
- Puberty / Sexual maturity in Females
- Male Reproductive System
- Male Reproductive System
- Testes: Histology of Testis
- Accessory ducts
- Glands: Prostate gland, Cowper’s gland/Bulbourethral gland, Semen
- External genitalia: Scrotum
- Puberty / Sexual maturity in males
- Female Reproductive System
- Fertilization in Human
- Fertilization
- Mechanism of fertilization
- Movement of sperm towards the egg
- Entry of sperm into the egg
- Activation of ovum
- Significance of fertilization
- Implantation in Human
- Implantation in Human
- Implantation duration and process
- Implantation bleeding
- Pregnancy in Humans
- First Trimester
- Second Trimester
- Third (final) Trimester
- Placenta (Growth) in Human
- Placenta
- Functions of Placenta
- Parturition (Birth) in Human
- Parturition (Birth) in Human
- Dilation stage
- Expulsion stage
- After birth
- Twins - Fraternal and identical
- More than two - The triplets, Quadruplets, etc
- Test tube babies
- Two unlucky conjoined twins
- Siamese twins - A developmental abnormality
4 Ecosystems
- Ecosystem
- Ecosystem
- Types of Ecosystem
- Natural Ecosystem
- Artificial Ecosystem
- Forests: Our Lifeline
- Forest Biology
- Forest Biodiversity
- Crown
- Canopy
- Understorey
- Forest Ecosystem
- Spatial pattern: Stratification and zonation
- Structure of an Ecosystem
- Biotic Components
- Producers
- Primary consumers
- Secondary consumers
- Tertiary consumers
- Abiotic Components
- Sunlight
- Air
- Water
- Temperature
- Soil
- Interaction between biotic and abiotic factors in an ecosystem
- Classification of Animal
- Animal and their food
- Classification of animal on the basis of food
- Herbivores
- Carnivores
- Omnivores
- Scavengers
- Decomposers
- Tropic Level
- First Trophic level (Photoautotrophs)
- Second trophic level (Herbivores)
- Third trophic level (Carnivores)
- Fourth Trophic level (Top carnivore)
- Food Chain
- Food chain
- Importance of food chain
- Food Web
- Food web
- Advantage of Food web
- Energy Pyramid
- Flora and Fauna of Forest Ecosystem
- Risks to Ecosystem
- Need to Restore and Conserve the Ecosystems
5 Human Body: Endocrine System
- Hormones
- Properties of Hormones
- Mechanism of hormone action
- Mode of hormone action through membrane receptors
- Mode of action through intracellular receptors
- Human Endocrine System
- Human Endocrine System
- The hormones at a glance
- Human Endocrine Glands
- Adolescence
- Adolescence
- Stages of Adolescence
- Physical changes of adolescence
- Mental Health and Adolesence
- Physical Changes
- Development of Sexual and Secondary Sexual Characters
- Adolescence and the Related Psychological Changes
- Types of Hygiene: Personal Hygiene
- Personal Hygiene
- Major aspect of personal hygiene
- Cleanliness
- Physical exercise
- Rest and sleep
- Healthy habits
- Stress Management
- Stress
- Stress management
6 Human Body: Circulatory System
- Circulation
- Circulation
- Need for transport inside the body
- Fluids in Our Body
- Fluids in Our Body
- Blood
- Tissue fluid
- Lymph
- Blood Circulatory System in Human
- Human Heart
- Location
- Heart wall
- Chambers of the heart
- Blood vessels entering and leaving the heart
- Valves regulate the flow of blood in a single direction
- Blood Vessels – Arteries, Veins, and Capillaries
- Circulation of Blood in the Heart (Functioning of Heart)
- Circulation of blood in the heart
- Pumping action of the heart
- Conducting tissue of the heart
- Conducting system of the heart
- Pacemaker
- Circulation of Blood in the Heart: Cardiac Cycle
- Cardiac Cycle
- Atrial systole (AS)
- Ventricular systole (VS)
- Cardiac output (CO)
- Types of Blood Circulation
- Blood vascular system
- Types of blood vascular system
- Open circulation
- Closed circulation
- Types of Closed Circulation:
- Single circulation
- Double circulation
- Systemic circulation
- Pulmonary circulation
- Coronary circulation
- Hepatic Portal System
- Tissue Fluid (Or Lntercellular Fluid)
- Lymph and Lymphatic System
- Lymph and Lymphatic System
- Composition of Lymph
- Functions of Lymph
- Blood Transfusion and Blood Groups (ABO and Rh system)
- Blood Donation
- From where the blood is supplied for blood transfusion?
- Blood banks
- Blood donor
- Blood recipient
- ABO System and Rh system
- Rh factor in pregnancy
- Heart Related Conditions
- Hypertension
- Coronary Artery Disease (CAD)
- Angina Pectoris
- Angiography
- Heart Transplant
- Silent Heart Attack
- Keeping the Heart Healthy
7 Human Body: Nervous System
- Control and Co-ordination
- Coordination
- Types of coordination
- Nervous coordination
- Chemical coordination
- Control and Co-ordination in Animals
- Human Nervous System
- Human Nervous system
- Need of Nervous System
- Components of Nervous System
- Neural Tissue
- Neuron (Or Nerve Cell) and Its Types
- Neuron
- Types of neurons
- Unipolar neurons
- Bipolar neurons
- Multipolar neurons
- Sensory or afferent neurons
- Motor or efferent neurons
- Association (connecting) neurons
- Nerve
- Types of Nerve
- Sensory nerves
- Motor nerves
- Mixed nerves
- Difference between Neuron and Nerve
- Neuron (Or Nerve Cell) and Its Types
- Neuron (Or Nerve Cell) and Its Types
- Structure of the Neuron
- Structure of the neuron
- Cyton
- Dendrites
- Axon
- Synapse
- Nerve Fibres
- Nerve Fibres
- Properties of nerve fibres
- Types of Nerve Fibres
- Myelinated nerve fibre
- Non-myelinated nerve fibre
- Structure of the Neuron
- Major Division of the Nervous System
- The major division of The Nervous System
- Central Nervous System (CNS)
- Peripheral nervous system (PNS)
- Somatic Nervous System
- Autonomic Nervous System
- Components of the nervous system at a glance
- Central Nervous System (CNS)
- Central nervous system (CNS)
- CSF (cerebrospinal fluid)
- The Human Brain
- Brain
- How are these Tissues protected?
- How does the Nervous Tissue cause Action?
- Central Nervous System (CNS): Structure of Human Brain
- Three main parts:
- Cerebrum (cerebrum: brain)
- Cerebellum ("little brain")
- Medulla Oblongata
- Three Primary Regions of the Brain:
- Forebrain
- Mid brain
- Hindbrain
- The Spinal Cord
- Spinal Cord
- Functions of the spinal cord
- Peripheral Nervous System (PNS)
- Peripheral Nervous System (PNS)
- Types of Peripheral Nervous System (PNS)
- Somatic Nervous System
- Autonomic Nervous System
- Emotions and autonomic nervous system
- Reflex and Reflex Action
- Reflexes
- Types of actions
- Voluntary actions
- Involuntary actions
- Types of Reflexes
- Natural (inborn) reflex
- Conditioned (or acquired) reflex
- Pavlov's experiment on a dog
- Reflex Arc
- Various terms associated with reflex arc:
- Receptor
- Sensory neuron
- Central nervous system
- Motor neuron
- Effector
8 Health and Hygiene
- Health
- Health
- The significance of 'Health'
- Personal and Community Issues Both Matter for Health
- Distinctions between "Healthy" and 'Disease-Free'
- Hygiene
- Disease
- Diseases
- Identification of disease
- Categories of Disease
- Categories of Disease
- Extent of occurrence
- Endemic diseases
- Epidemic diseases
- Pandemic diseases
- Sporadic diseases - Communicability: Communicable or Infectious diseases & Non- Communicable or Non-Infectious diseases
- Kinds of pathogens
- Kinds of transmitting agents
- Congenital diseases and acquired diseases
- Other types of diseases
- Infectious diseases
- Hereditary diseases
- Physiological diseases
- Deficiency diseases
- Communicable Or Infectious Diseases
- Communicable or Infectious diseases
- Causes of Communicable or Infectious diseases
- Communicable examples
- Incubation period
- Spread of Communicable Diseases
- Diseases Caused by Virus
- Vector Borne Diseases
- Vector
- Vector Borne Diseases: Mosquitoes, Cockroaches and Rats
- Malaria
- Elephantiasis (filariasis)
- Yellow fever
- Dengue
- Control of mosquitoes:
- Spraying
- Elimination of breeding places
- Spraying on stagnant water
- Biological control
- Principles of Prevention of Diseases
- Vaccination and Immunization
- Vaccination and its Types
- Immunization
- Immunization Schedule
- First Aid and Emergency Action
- First Aid kit
- Tobacco Abuse
- Alcohol Abuse
- Alcohol Abuse
- Effect of Alcohol Abuse
- Prevention and Control of Alcohol Abuse
- Drug Abuse
- Drugs
- Addiction and Dependence
- Effects of Drug
- Prevention and Control of Drug abuse
9 Food Production
- Microorganisms (Microbes) and Microbiology
- Bacteria
- Bacteria
- Bacteria Friends or Foes?
- Bacteriology
- Milestones in Bacteriology
- Characteristic features of Bacteria
- Numbers of Bacteria
- Size of Bacteria
- Useful Role of Bacteria in Industry
- Useful Role of Bacteria in Food Industry
- Useful Role of Bacteria in Medicine
- Useful Role of Bacteria in Agriculture
- Fungi
- Fungi
- Mycology
- Milestones in Mycology
- World War II and Penicillin History speaks on fungi
- Characteristics of Fungi
- Structure of Fungi
- Numbers of Fungi
- Useful and Harmful Role of Fungi
- Crop and Its Types
- Horticulture
- Organic Farming
- Green Revolution
- Animal Husbandry (Livestock)
- Animal Husbandry
- Role of Animal Husbandry in Human Welfare
- Advantages of Animal Husbandry
- Management of farms and farm animals
- Dairy Farming (Cattle Farming)
- Cattle Breeds
- Composition of Cattle Feed
- Feed Management
- Improvement of Livestock Development in India
- Diseases
- Uses of Dairy Farming
- Poultry Farming
- Poultry Farming
- Poultry Feeding
- Poultry Disease
- Poultry product
- Uses of Poultry Farming
- Poultry management
- Pisciculture (Fish Farming)
- Pisciculture
- Types of Fish Culture
- Extensive fish culture
- Intensive fish culture
- Monoculture
- Polyculture
- Integrated fish farming
- Types of Ponds for Fish Culture
- Breeding pond
- Hatching pits
- Nursery ponds
- Rearing ponds
- Stocking pond
- Cultivable Food Fishes
- Nutritional Value of Fishes
- Apiculture (Bee Farming)
- Apiculture
- Types of Honey Bee
- Queen Bee
- Drones
- Worker Bees
- Useful product of Honey Bees
- White Revolution
- Meat Providing Livestock
- Aquaculture
- Sericulture
- Sericulture
- The life cycle of silk moth (Mulberry silkworm)
- Uses of Sericulture
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